<template>
  <header class="header">
    <h1>todos</h1>
    <input id="toggle-all" class="toggle-all" type="checkbox" v-model="isAll">
    <label for="toggle-all"></label>
    <input
      class="new-todo"
      placeholder="输入任务名称-回车确认"
      autofocus
      v-model.trim='name'
      @keyup.enter="add"
    />
  </header>
</template>

<script>
export default {
  props: {
    list: {
      type: Array,
      required: true
    }
  },
 data() {
   return {
     name:''
   }
 },
 methods: {
   add(){
    //  子传父name
     this.$emit("add",this.name)
    //  清空内容
    this.name = ""
   }
 },
 computed: {
   isAll: {
   get(){
    return this.list.every((item) => item.isDone === true)
   },
set(value) {
  this.$emit('checkAll',value)
}
 }
 }
}
</script>